ROOM AIR CONDITIONER MULTI SPLIT TYPE

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OPERATING MANUALROOM AIR CONDITIONEREnglishMULTI SPLIT TYPE(3 ROOMS)Indoor UnitASU18TOutdoor UnitAOU36TKEEP THIS OPERATION MANUALFOR FUTURE REFERENCE.FUJITSU GENERAL LIMITED

CONTENTSSAFETY PRECAUTIONS . 1FEATURES AND FUNCTIONS . 2NAME OF PARTS . 3PREPARATION . 7OPERATION . 9TIMER OPERATION . 1 3SWING OPERATION . 17ENERGY SAVE OPERATION . 19MANUAL AUTO OPERATION . 19CLEANING AND CARE . 2 0TROUBLESHOOTING . 2 3OPERATING TIPS . 2 4ADJUSTING THE DIRECTION OFAIR CIRCULATION . 15SAFETY PRECAUTIONS Before using the appliance, read these “PRECAUTIONS” thoroughly and operate in the correct way. The instructions in this section all relate to safety; be sure to maintain save operating conditions. “DANGER”, “WARNING” and “CAUTION” have the following meanings in these instructions:DANGER!This mark indicates procedures which, if improperly performed, are most likely toresult in the death of or serious injury to the user or service personnel.WARNING!This mark indicates procedures which, if improperly performed, might lead to thedeath or serious injury of the user.CAUTION!This mark indicates procedures which, if improperly performed, might possibly resultin personal harm to the user, or damage to property.DANGER!CAUTION! Do not attempt to install this air conditioner by yourself. This unit contains no user-serviceable parts. Always consult authorized service personnel for repairs. When moving, consult authorized service personnel for disconnection and installation of the unit. Do not become excessively chilled by staying for lengthy periods in the direct cooling airflow. Do not insert fingers or objects into the outlet port or intake grilles. Do not start and stop air conditioner operation by turning off the circuit breaker and so on. In the event of a malfunction (burning smell, etc.), immediately stop operation, turnoff the circuit breaker, and consult authorized service personnel. En-1Provide occasional ventilation during use.Do not direct air flow at fireplaces or heating apparatus.Do not climb on, or place objects on, the air conditioner.Do not hang objects from the indoor unit.Do not set flower vases or water containers on top of air conditioners.Do not expose the air conditioner directly to water.Do not operate the air conditioner with wet hands.Turn off power source when not using the unit for extended periods.Check the condition of the installation stand for damage.Do not place animals or plants in the direct path of the air flow.Do not drink the water drained from the air conditioner.Do not use in applications involving the storage of foods, plants or animals, precisionequipment, or art works.Do not apply any heavy pressure to radiator fins.Operate only with air filters installed.Do not block or cover the intake grille and outlet port.Ensure that any electronic equipment is at least one meter away from either the indoor or outdoor units.Avoid installing the air conditioner near a fireplace or other heating apparatus.When installing the indoor and outdoor unit, take precautions to prevent access to infants.Do not use inflammable gases near the air conditioner.Always turn off the circuit breaker whenever cleaning the air conditioner or changingthe air filter.Connection valves become hot during Heating, handle with care.When restarting the air conditioner after a long period of disuse, turn the power switchon at least 12 hours before starting the unit.

FEATURES AND FUNCTIONSAUTOMATIC OPERATION COOLING MODELMerely press the START/STOP button, and the unit willbegin automatic operation in the Cooling or Dry mode asappropriate, in accordance with the thermostat settingand the actual temperature of the room. HEAT & COOL MODEL (REVERSE CYCLE)Merely press the START/STOP button, and the unit willbegin automatic operation in either the Heating, Coolingor Monitor modes as appropriate, in accordance with thethermostat setting and the actual temperature of theroom.SLEEP TIMERREMOVABLE INTAKE GRILLEThe indoor unit’s INTAKE GRILLE can be removed for easycleaning and maintenance.MILDEW-RESISTANT FILTERThe AIR FILTER has been treated to resist mildew growth,thus allowing cleaner use and easier care.AIR CLEANING FILTER (Optional)The optional air cleaning filter uses an electrostatic principle to clean the air of fine particulate matter such as tobaccosmoke and plant pollen. COOLING MODELWhen the SLEEP timer button is pressed during Coolingor Dry mode, the thermostat setting is gradually raisedduring the period of operation. When the set time isreached, the unit automatically turns off. HEAT & COOL MODEL (REVERSE CYCLE)When the SLEEP timer button is pressed during Heatingmode, the air conditioner’s thermostat setting is gradually lowered during the period of operation; during Cooling or Dry mode, the thermostat setting is gradually raisedduring the period of operation. When the set time isreached, the unit automatically turns off.WIRELESS REMOTE CONTROL UNITThe WIRELESS REMOTE CONTROL UNIT allows convenientcontrol of air conditioner operation.OMNI-DIRECTIONAL AIR FLOW(SWING OPERATION)Three-dimensional control over air direction swing is possible through dual use of both an UP/DOWN air direction swingand RIGHT/LEFT air direction swing. Since UP/DOWN airdirection flaps operate automatically according to the operating mode of the unit, it is possible to set air direction basedon the operating mode.En-2

Fig. 1Fig. 2Fig. 3Fig. 5Fig. 4Fig. 6Fig. 8Fig. 7

NAME OF PARTSFig. 1 Indoor UnitFig. 6 Remote Control Unit1 Operating Control Panel (Fig. 2)2 MANUAL AUTO buttonJKLMNOPQR3 Remote Control Signal Receiver4 Indicator Lamps (Fig. 3)5 OPERATION Indicator Lamp (red)6 TIMER Indicator Lamp (green) If the TIMER indicator lamp flashes whenthe timer is operating, it indicates that afault has occurred with the timer setting(see page 17 Auto Restart).7 SWING Indicator Lamp (orange)890AIntake Grille (Fig. 4)Air FilterAir Flow Direction LouverRight-Left Louvers(behind Air Flow Direction Louver)B Drain HoseC Inter Unit-LineD Air Cleaning Filter (optional)En-4Power SupplyIntake PortOutlet PortPipe UnitDrain port (bottom))Rear side (Fig. 7)S TIME ADJUST buttonT ACL button(located inside battery compartment)U TEST RUN button This button is used when installing theunit, and should not be used under normal conditions, as it will cause the air conditioner’s thermostat function to operateincorrectly. If this button is pressed during normal operation, the unit will switch to test operation mode, and the Indoor Unit’s OPERATION Indicator Lamp and TIMER IndicatorLamp will begin to flash simultaneously.Fig. 5 Outdoor UnitEFGHISLEEP buttonMASTER CONTROL buttonSET TEMP./SET TIME button (Signal TransmitterTIMER buttonFAN CONTROL buttonSTART/STOP buttonAIR FLOW DIRECTION buttonSWING LOUVER button To stop the test operation mode, press theSTART/STOP button to stop the air conditioner.VWXYZ[\] Remote Control Unit Display (Fig. 8)Transmit IndicatorClock DisplayOperating Mode DisplayTimer Mode DisplayFan Speed DisplayTemperature Set DisplayTimer Set IndicatorTemperature Set Indicator

NAME OF PARTSInstructions relating to heating(*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).Fig. 1Fig. 2Fig. 3Fig. 5Fig. 4Fig. 6JGSLEEPKTIMERCLOCKUVAUTOCOOLMASTERCONTROLHISET SETTEMP. DRYFANHEATTIMER SLEEPHONM OFFYON TIMER RESETENERGY SAVEAUTOHIGHMEDLOWZ[\]OPQFig. 7En-5SETSWING SETSWINGTIME TESTENERGY ADJUST RUN ACLSAVERSTFig. 8

Fig. 1 Indoor UnitFig. 6 Remote Control Unit1 Operating Control Panel (Fig. 2)2 MANUAL AUTO buttonGHIJKLMN3 Remote Control Signal Receiver4567Indicator Lights (Fig. 3)OPERATION Indicator Light (red)TIMER Indicator Light (green)SWING Indicator Light (orange)(VERTICAL SWING)8 SWING Indicator Light (orange)(HORIZONTAL SWING) If the TIMER indicator light flashes whenthe timer is operating, it indicates that afault has occurred with the timer setting(See page 15 Auto Restart).90ABIntake Grille (Fig. 4)Air FilterUP/DOWN Air Direction FlapsRIGHT/LEFT Air Direction Louvers(behind UP/DOWN Air Direction Flaps)C Drain HoseD Air Cleaning Filter (optional))Inside of the battery compartment lid (Fig. 7)O AIR FLOW DIRECTION ButtonP ENERGY SAVE ButtonQ CODE CHANGE (Slide Switch)Switching the remote control unit code.(Max. 4 units)R TIME ADJUST ButtonS TEST RUN Button This button is used when installing the airconditioner and should not be used undernormal conditions as it will cause the airconditioner’s thermostat function to operate incorrectly. If this button is pressed during normal operation, the unit will switch to test operation mode, and the indoor unit’s OPERATION indicator light and TIMER indicatorlight will begin to flash simultaneously. To stop the test operation mode, eitherpress the TEST RUN button once again, orpress the START/STOP button to stop theair conditioner.Fig. 5 Outdoor UnitE Intake SideF Outlet SideSLEEP ButtonMASTER CONTROL ButtonSET TEMP./SET TIME Buttons (Signal TransmitterTIMER ButtonFAN CONTROL ButtonSTART/STOP ButtonBattery compartment lidT ACL ButtonUVWXYZ[\]Remote Control Unit Display (Fig. 8)Transmit IndicatorClock DisplayOperating Mode DisplayTimer Mode DisplayFan Speed DisplayTemperature Set DisplayTimer Set IndicatorTemperature Set IndicatorEn-6

PREPARATIONCAUTION!Turn on the PowerIn the case of a direct line connection, turn on the circuitbreaker.Load Batteries (AAA 2)1Press and slide the battery compartment lid on the reverse side to open it.Slide in the direction of the arrow while pressing themark. Take care to prevent infants from accidentally swallowing batteries. When not using the remote control unitfor an extended period, remove the batteries to avoid possible leakage and damage to the unit. If leaking battery fluid comes in contactwith your skin, eyes, or mouth, immediately wash with copious amounts of water, and consult your physician. Dead batteries should be removed quicklyand disposed of properly, either by placing in a public battery collection receptacle, or by returning to appropriate authority. Do not attempt to recharge dry batteries.23Insert batteries.Be sure to align the battery polarities () correctly.Close the battery compartment lid.Set the Current time12Press the TIME ADJUST button (Fig. 7 S).Never mix new and used batteries, orbatteries of different types.Batteries should last about one yearunder normal use. If the remote controlunit’s operating range becomes appreciably reduced, replace the batteries andpress the ACL button (Fig. 7 T) withthe tip of a ballpoint pen or other smallobject.Use the tip of a ball-point pen or other small object to press the button.Use theSET TEMP./SET TIME buttons (Fig. 6 L)to adjust the clock to the current time.button: Press to advance the time.button: Press to reverse the time.(Each time the buttons are pressed, the time will be advanced/reversed inone-minute increments; hold the buttons depressed to change the timequickly in ten-minute steps.)3Press the TIME ADJUST button again.This completes the time setting and starts the clock.To Use the Remote Control Unit The remote control unit must be pointed at signal receiver (Fig. 1 3) to operatecorrectly. Operating range: About 7 meters. When a signal is properly received by the air conditioner, a beep be heard. If no beep is heard, press the remote control unit button again.Remote Control Unit HolderInsertSlide upPress inPull outScrews1 Mount the Holder.2 Set the Remote ControlUnit.3 To remove the RemoteControl Unit .En-7

PREPARATIONCAUTION!Load Batteries (R03/LR03/AAA 4)1Open the battery compartment lid.1 Slide the battery compartment lid until it stops.2 While strongly gripping the portion on each side of the battery compartment lid that has a rough surface, slide the lid until it comes completely off.2122Insert batteries.3Close the battery compartment lid.Be sure to align the battery polarities () correctly.2Never mix new and used batteries, orbatteries of different types.Batteries should last about one yearunder normal use. If the remote controlunit’s operating range becomes appreciably reduced, replace the batteries andpress the ACL button with the tip of aballpoint pen or other small object.Set the Current time12 Take care to prevent infants fromaccidentally swallowing batteries. When not using the remote control unitfor an extended period, remove thebatteries to avoid possible leakage anddamage to the unit. If leaking battery fluid comes in contactwith your skin, eyes, or mouth, immediately wash with copious amounts ofwater, and consult your physician. Dead batteries should be removedimmediately and disposed of properly,either in a battery collection receptacleor to the appropriate authority. Do not attempt to recharge dry batteries.Press the TIME ADJUST button.Use the tip of a ball-point pen or other small object to press the button.Use the ()SET TIME buttons to adjust the clock tothe current time.SETbutton: Press to advance the time.button: Press to reverse the time.(Each time the buttons are pressed, the time will be advanced/reversed inone-minute increments; hold the buttons depressed to change the timequickly in ten-minute increments.)3SWING SETSWINGTIME TESTENERGY ADJUST RUN ACLSAVEPress the TIME ADJUST button again.This completes the time setting and starts the clock.To Use the Remote Control Unit The remote control unit must be pointed at signal receiver to operate correctly. Maximum operating range: Approximately 10 meters. (This may not apply whenthe battery is low or there are obstacles.) When a signal is properly received by the air conditioner, a beep will be heard. If no beep is heard, press the remote control unit button again.Remote Control Unit HolderFor Hand-Held useFor Wall Mount useInsertInsertSlide upSlideScrewsScrewsScrew1 Mount the Holder. 2 Set the RemoteControl Unit.En-83 To remove theRemote ControlUnit.1 Mount the Holder. 2 Set the RemoteControl Unit.3 Attach the unit tothe holder asshown.

OPERATIONTo Select Mode Operation1Press the START/STOP button (Fig.6 P).2Press the MASTER CONTROL button (Fig.6 K) to select the desired mode.The indoor unit’s OPERATION indicator lamp (red) (Fig. 3 5) will light.The air conditioner will start operation.Each time the button is pressed, the mode will change in the followingorder:s DRYsAUTOs COOLs FANAbout three seconds later, the entire display will reappear.Example: When set to COOLTo Set the ThermostatPress the SET TEMP. buttons (Fig. 6 L).button: Press to raise the thermostat setting.button: Press to lower the thermostat setting. Thermostat setting range:Cooling/Drying . 64 to 88 FFan . 62 to 88 FAbout three seconds later, the entire display will reappear.NOTE: During Fan mode, set the unit to “– – “ for continuous fan operation regardless of room temperature.The thermostat setting should be considered a standard value, and may differsomewhat from the actual room temperature.Example: When set to 80 FTo Set the Fan SpeedPress the FAN CONTROL button (Fig. 6 O).Each time the button is pressed, the fan speed changes in the following order:sAUTOsHIGHsMEDsLOWsQUIETAbout three seconds later, the entire display will reappear.When set to AUTO:Cooling : As the room temperature approaches that of the thermostat setting,the fan speed becomes slower.Fan: The fan will operate at the optimum speed in accordance with theroom temperature in the vicinity of the indoor unit.When set to QUIET:SUPER QUIET operation begins. The indoor unit’s airflow will be reduced forquieter operation. SUPER QUIET operation cannot be used during Dry mode. (The same is truewhen dry mode is selected during AUTO mode operation.) During SUPER QUIET operation, Cooling performance will be reduced somewhat.En-9Example: When set to AUTOIn order to increase the drying effectduring quiet cooling operation, the fan ofthe indoor unit may stop.

To Select Automatic OperationPress the MASTER CONTROL button to select AUTO.The operating mode “AUTO” will appear alone in the display. The transmit indicator will flash to indicate the command has been sent, and about three seconds later the entire display panel will reappear.To Set the ThermostatPress the TEMPERATURE set button.LOWHIGHWhen set to4 F lowerLOWHIGHWhen set to2 F lowerLOWHIGHWhen set to“normal”LOWHIGHWhen set to2 F higherLOWHIGHWhen set to4 F higherAbout three seconds later, the entire display will reappear.NOTE: The thermostat setting should be considered a standard value, and maydiffer somewhat from the actual room temperature.To Stop OperationPress the START/STOP button.The OPERATION indicator lamp (red) (Fig. 3 5) will go out.Example: When set to “normal”About Mode OperationAUTO: Depending on the room temperature at the time operation begins, the operatingmode will be switched automatically as shown in the accompanying table.Also, depending on the operating mode, the room temperature setting will causethe “standard” temperature to be set as shown.Actual RoomTemperature88 F or above82 to 88 F78 to 82 F74 to 78 FBelow 74 FOperating Mode CoolingCoolingDryDryDry Thermostat Setting(standard setting)82 F80 F76 F72 F68 FThe operating mode and standard thermostat settings are selected automaticallywhen operation begins. When automatic operation is initiated, the fan will run at very low speed for aboutone minute while the unit detects and selects the proper operating mode. Once the operating mode has been set, the mode will not change even if theroom temperature changes. If the START/STOP button is pressed to recommence operation within two hoursafter stopping automatic operation, the unit will begin operating from the samemode as before.Cooling: Use to cool your room.Dry: Use for gently cooling while dehumidifying your room. You cannot heat the room during Dry mode. During Dry mode, the unit will operate at low speed; in order to adjust roomhumidity, the indoor unit’s fan may stop from time to time. Also, the fan mayoperate at very low speed when detecting room humidity. The fan speed cannot be changed manually when Dry mode has been selected.During Cooling/Dry mode:Set the thermostat to a temperature settingthat is lower than the current room temperature. The Cooling and Dry modes will notoperate if the thermostat is set higher thanthe actual room temperature (in Coolingmode, the fan alone will operate).During Fan mode: Fan operation begins when room temperature in the vicinity of the air conditioner rises above the set thermostattemperature; when the temperaturedrops, fan operation stops. If the air emitted feels too cool, raisethe thermostat setting.Fan: Use to circulate warm air from ceiling area throughout room when using spaceheaters.En-10

OPERATIONInstructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).To Select Mode OperationSLEEP1Press the START/STOP button.2Press the MASTER CONTROL button to select the desired mode.TIMERThe indoor unit’s OPERATION indicator light (red) will be on.The air conditioner will start operating.COOLMASTERCONTROLSET SETTEMP. TIMEFANCONTROLEach time the button is pressed, the mode will change in the followingorder.sCOOLsAUTOs DRYSTARTSTOP*HEAT tFAN tAbout three seconds later, the entire display will reappear.Example: When set to COOLTo Set the ThermostatPress t

room air conditioner multi split type (3 rooms) keep this operation manual for future reference. fujitsu general limited operating manual indoor unit asu18t outdoor unit aou36t english. en-1 contents

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